Molding machine for plastic material



} Oct. 27, 1942. J. w. APPLEY' MOLDiNG MACHiNE FOR PLASTIQ MATERIAL Filed June 13, 1941 ATTORNEY uprights and suitable Patented- Oet. 27, 1942 UNITED STATES PATENT OFFICE 2,299,124. Momma mom son ms'rro m'mam.

James W. Appley, St. Petersburg, Fla. Application June 13, 1941, Serial No. 397,94;

1 Claim. (01. 25-41) complish'ed by a novel structure wherein an arrangement of eccentrics set up a rocking vibratory actionto the core box, said vibratory action being balanced by vertical springs as the core box is rocked upon rocking stub shafts laterally disposed from opposite ends thereof.

This invention resides substantially in the combination, construction, arrangement and relative location of parts. all-in accordance with the disclosure herein,

In the accompanying drawing, Figure 1 is an end elevational view of a machine in accordance with this invention.

Figure 2 is a front elevational view'of the upper mounting of the core box is resultant. To equalize said rocking movement there are provided vertical resilient engaged in aligned and spaced sockets I and I, said sockets I and 8 being integral with the core box and lateral therefrom at substantially the four outer base corners thereof and mounted upon the frame respectively.

Vibration of said core box is created by driven eccentric mechanism B installed to the rear of the machine upon longitudinal bars ll centrally Y interposing the frame uprights,,and transmitted portion thereof, with spring housings shown in section.

Figure 3 is a sectional view, of the upper portion thereof, on line 3-3, with core and core support removed. i

The true nature and manner of use of a machine in accordance with this invention will be best understood by a detailed description of the form thereof shown in the drawing in an illustrative sense,

This machine includes a frame A composed of cross members. Mounted upon and arranged for rocking vibratory movement, as to said frame, is a core box 2 which may be of any desirable size and adapted to accommodate one or more cores as indicated by 3 or the like. r g 2 and intewhich are thefritmeA.

asthecoreboxiisvibratedduetothe lustab y through the longitudinal bars by fixed engagement therebetween at the base of the rear wall of the core box.-

From the above description it will be apparent to those skilled in the art that the details of construction illustrated herein may readily be varied without departure from the novel subject matter herein disclosed. I do not, therefore, desire to be strictly limited by the disclosure but ratherby the claim granted me.

What is claimed is: g

In a molding machine for plastics, a core box, a base under said core box, pivotal means connecting the core box to said base for rocking motion thereon, cushion springs between said core box and the base to resist said rocking motion of the box and coacting with the pivotal means in normally supporting said core box horizontally, flexible bars fixed to and extending from the core box, vibrating means connected to said bars whereby vibrations thereof will be delivered to the core box by said bars, springs arranged above and below said bars and engaging therewith at their outer nected to the latter named springs above and below the bars and carried by the core box'to adand yieldably support the outer ends of the said'bars.

a JAMEs w. APPIEY.

of the shafts I, a rocking movement members 6 opposite ends of which are to the core box ends, and a hanger adjustably con-' 

